IPS is a technology for panels which provides good viewing angles and high
quality color reproduction:
https://en.wikipedia.org/wiki/IPS_panel
The following official 15" T60 panels are supported by Libreboot and are also
IPS:
LG-Philips LP150E05-A2K1 (1400x1050)
BOE-Hydis HV150UX1-100 (1600x1200)
You can also use unofficial panels (panels taken from other laptops), such as
IDtech IAQX10N (2048x1536) (originally provided in R50P - GRUB screen doesn't
show up but it loads GNU/Linux fine).
You can find a list of IPS panels here:
http://www.thinkwiki.org/wiki/TFT_display
You can find out which panel you have using this guide:
https://libreboot.org/docs/misc/#get_edid_panelname
P.S. I currently use the panel LP150E05-A2K1. Before that I used IAQX10N
panels which unfortunately became unusable due to bad pixels.
